Below are the minimum and recommended system specifications for World of Warcraft® and the Shadowlands® expansion on Windows® and Mac®. Due to potential programming changes, the minimum system requirements for World of Warcraft may change over time. Note: For a list of compatible video hardware, see our Supported Video Cards list. Type regedit in RUN or Start Menu search box and press Enter. It'll open Registry Editor. Now go to: HKEYLOCALMACHINE SOFTWARE Microsoft Windows CurrentVersion App Paths. Now we'll need to create a new key under 'App Paths' key. Right-click on 'App Paths' key and select 'New - Key'. Set its name to your desired application name along.
Disk Utility User Guide
You can use Disk Utility to create a disk image, which is a file that contains other files and folders.
Note: You can burn information to a CD or DVD using the Burn command in the Finder. See Burn CDs and DVDs.
Create a blank disk image for storage
You can create an empty disk image, add data to it, then use it to create disks, CDs, or DVDs.
Create a disk image from a disk or connected device
You can create a disk image that includes the data and free space on a physical disk or connected device, such as a USB device. For example, if a USB device or volume is 80 GB with 10 GB of data, the disk image will be 80 GB in size and include data and free space. You can then restore that disk image to another volume.
Important: Don’t create a disk image of a disk that you believe to be failing or that contains corrupted information. The disk image may not serve as a reliable backup.
For technical information about creating a restore disk image, see the Apple Software Restore (ASR) manual (man) page.
Create a disk image from a folder or connected device
You can create a disk image that contains the contents of a folder or connected device, such as a USB device. This method doesn’t copy a device’s free space to the disk image. For example, if a USB device or volume is 80 GB with 10 GB of data, the disk image will be 10 GB in size and include only data, not free space. You can then restore that disk image to another volume.
For technical information about creating a restore disk image, see the Apple Software Restore (ASR) manual (man) page.
Create a secure disk image
If you have confidential documents that you don’t want others to see without your permission, you can put them in an encrypted disk image.
Note: If you want to protect the contents of the system disk, turn on FileVault using the FileVault pane of Security & Privacy Preferences.
When you’re finished using the documents on the secure disk image, be sure to eject the disk image. As long as it’s available on your desktop, anyone with access to your computer can use the documents on it.
To access the data in a disk image, double-click it. It appears on your desktop, and you can add, remove, and edit files on it just as you would with a disk.
See alsoAdd a checksum to a disk image using Disk Utility on MacVerify that a disk image’s data isn’t corrupted using Disk Utility on MacRestore a disk image to a disk using Disk Utility on MacConvert a disk image to another format using Disk Utility on Mac
In this post, I'll attempt to give you my personal guide on some good steps to getting started with the Love2D game engine (the proper name is LÖVE, which I'll be using from now on). It's not perfect, of course, but I hope you find it useful. If you have any feedback, I'd love to hear from you in the comments.
What is LÖVE?
I'm guessing you probably already know, but for those who don't, LÖVE is a 2D game engine (or, framework). It's an environment which contains a lot of pre-written code targeted at making games. It interfaces with the Lua programming language to makes things even easier for you.
Compared to other 2D engines, LÖVE is the best I've seen so far. Its API (Application Programming Interface) is very simple and (usually) intuitive, Lua is a great language, the environment in general is nice, and the community is very friendly and supportive. Oh yeah, it's totally free and open-source too, licensed under the very liberal zlib/libpng license.
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So, if you want to learn how to use LÖVE, read on.
Getting Set Up
First thing to do is go and download the engine for your operating system over at its homepage. Then proceed to install it. You'll probably want install Lua as well; you can get it from the download page, this will allow you to play around with Lua interactively using the
lua command. You don't have install Lua to run games however, as Lua is included inside of LÖVE.
Next, make sure you've got a text editor installed. Here's a few of my recommendations:
Next, if you're on a Mac, you'll want to do the following to make it easier to run games from the terminal. Open up your text editor with a file located at
~/.bash_profile (you may have to do this with the Terminal) and copy the following into it:
If you placed
love.app in the Applications folder, this will allow you to run LÖVE games from the terminal with the love command.
Lua
The Lua programming language is how you'll tell LÖVE what to do. If you don't already know Lua, you'll definitely want to learn the fundamentals of it before diving into LÖVE. If you've already got some programming experience, I'd recommend my Lua for Programmers series. The other place you could go is the official Programming in Lua book (often abbreviated as PIL).
If you don't have any previous programming experience, the only place I can really point you to is Google and the afore mentioned book. You could also try getting a bit of experience in some other programming language and then come back to Lua.
Game Structure
Once you've got some Lua under your belt, you need to know what a LÖVE game is made of. Fortunately, LÖVE places few requirements on how you structure your game. First, you must create a folder and name it whatever you want. Second, you must create a file inside this folder called
main.lua . This Lua script is run when the game starts up; from here you can load other scripts, resources, and so on. Finally, you must place everything your game needs (images, music, code, etc.) inside this folder.
.love Files
One thing you'll need to know about when using LÖVE is .love files. These files are the standard way of packaging a game's folder into a single file. Really, they are just zip files containing the contents of the game, except renamed with a
.love extension. This allows them to be double-clicked or dragged over the love executable/application and run.
There are two things to keep in mind. First, your
main.lua file must be top-level in the zip file. This means that you should zip the contents of the game's folder, not the folder itself. Second, file and directory path names inside a .love file are case sensitive; so you can't rely on your filesystem's case insensitivity.
Now, here's how to make a .love file (information taken from the wiki page on game distribution):
Windows
Mac/Linux
For more information on making .love files and distributing games, check out the wiki page on the subject.
LÖVE's API
Well, with all that out of the way, your next task is starting to learn LÖVE's API. There's quite a lot in it, and in this section I'll give you a quick walkthrough on how to approach it. Before I start, I'll point you to LÖVE's wiki, which contains a complete API reference (see the 'Documentation' section in the sidebar for links to the modules).
The API is divided up into modules. Every module (which is just a table) lives inside the module (again a table) named
love . Examples of modules are love.graphics and love.filesystem . Each of these modules contains functions which do certain things. For example, love.graphics.circle allows you to draw a circle to the screen.
Many modules also contain classes which serve a certain purpose, usually the storage and manipulation of some kind of data. For those who aren't familiar with object-oriented programming (OOP), jump down to the Object-Oriented Programming section below. Most of the time you will create instances of these classes via a module function with a name beginning with
new followed by the class name. For example, love.graphics.newImage creates a new instance of the Image class.
The first thing in the API you should take a look at is the callback functions located in the
love module, which are called at key stages in the game loop. Have a look at the tutorial for callbacks on the wiki to get started.
Once familiar with those, it's time to look at some modules. You don't have to learn them all, half of them you won't need for a simple game; it all depends on what you want to do. Firstly get familiar with
love.graphics ; it may be the biggest module, but you don't need to know all of it. Probably the best things to take a look at are the drawing functions, and some of the classes.
Next you'll want to at least familiarise yourself with how LÖVE handles files. Have a read of
love.filesystem 's description for that. You'll probably want to take a look at the stuff inside the module too.
After this, I'd say take a look at
love.keyboard for taking keyboard input, love.mouse for mouse input, and love.audio for dealing with playing audio.
That covers your essential modules. After this, take a look at the other modules if you need some more advanced functionality. For example, if you need physics, you may want to use
love.physics .
In summary:
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Object-Oriented Programming
(Note that you don't have to understand OOP to get started with LÖVE, but a bit of knowledge of it will help you down the track.)
OOP is a programming paradigm which is based around the need to associate data with functions (also called methods) which manipulate that data. There are a lot of concepts that go into OOP, so I'll only explain the basics here. The most common way (used by LÖVE) of implementing OOP is by using classes and objects. Classes are like a blueprint for creating a certain type of object. Classes define the varying data that each instance of the class (objects) will hold, and the methods that are available to manipulate that data.
Classes are used to create objects; so it's like using the blueprint to create an instance of thing that it depicts. This means that objects have their own set of data which can be manipulated, and methods defined by the class which do something with that data.
I know this is all very abstract, but here's an example straight from LÖVE:
If you want to learn more about OOP, do some research on it on the web; the wikipedia article on it may help. I also recommend reading the introductory material to this NetTuts+ tutorial; the rest is about PHP, but the start has some good material on the core concepts of OOP.
The Community
LÖVE's community is one of its many strong points. The community is very helpful, friendly, and usually quick to respond. If you ever get stuck, make sure you head over to the forums and ask for help in the Support and Development area (be sure to read the rules first!). There's an IRC channel too, located at #[email protected]; it usually has a good amount of people there.
Conclusion
Well, thanks a lot for reading. I hope this has helped you in some way. As said before, if you have any feedback be sure to leave me a comment.
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Have fun!
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